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Two pig fattening trials were conducted, one in summer and one in winter. A total of 96 crossbred pigs were analyzed, including 48 animals in each experiment. The pigs were randomly assigned to 4 groups: group 1 – pigs kept in litter-less pens and fed a complete dietad libitum, group 2 – pigs kept in litter-less pens and fed a complete diet supplemented with fresh alfalfa(experiment 1) or alfalfa...
The aim of the study was to compare the share of hatchery-reared lake trout Salmo truttam.lacustrisin catches of fingerlings in the upper Wda and the Pilica Rivers in Autumn, following the stocking fish in spring 2005. Larvae in number of 40 thousand had been previously exposed to the thermal shock procedure (temperature decrease from 8.0 to 2.5oC for 2 hours, and back to initialvalue), then released...
In this study comparison of quality parameters and chemical composition between cold-pressedoils obtained from 6 different rapeseed varieties, including double improved (RO), high-oleic (HORO)and yellow-seeded (YSRO), has been conducted. A clear correlation between fatty acid composition and oxidative stability of oils was observed. Variety-dependent variation in the content of individual tocopherols...
The aim of this study was to determine the state of hygiene of milk supplied through various forms of direct sales; purchased from the individual producer, a dairy delivering products to the consumer’s home, and from the milkomats located in the Tri-City. The milk samples were marked todetermine the OLD at 30℃, the presence and enumeration of Staphylococcus aureusand the presenceand number of E. coli...
The aim of this work is an attempt to define the role of intelligent packagings to make the course of logistic food processes more efficient. The implementation of the aim happened by conducting the surveys concerning the meaning of intelligent packagings advantages for the chosen participants of logistic processes in the chain of supply.The studies were questionnaires and included the following elements...
The aim of this study was to determine seasonal changes in the occurrence of carbon forms inwater and bottom sediment in lakes with a different type of mixing. The study was conducted in five urban lakes located in Olsztyn: Track, Sukiel, Podkówka, Redykajny and Tyrsko. The research was carried out in March, April, August and November. We analyzed TOC, DOC and IC in samples of water collected near...
The experimental materials comprised 180 carcasses of European roe deer (bucks, does and kids) hunter-harvested in forest (90 carcasses) and field (90 carcasses) habitats. Zoometric measurements of carcasses were carried out and the percentage shares of edible and non-edible components were determined.Significant differences were found in carcass size and weight between roe deer from different sexand...
The object of the study was to compare the effect of low- and high-pressure homogenization of milk on fat digestion in vitro. The extent of lipid digestion by lipase with and without addition of bile salts and phospholipid was monitored by determining the release of fatty acids. Additionally changes in the milk fat emulsion were monitored during the process of lipolysis. Higher amounts of fatty acids...
This paper analysed the impact of rapeseed size and storage conditions on content of phosphorus and phospholipids in seeds and oils. The study was carried out with variably-sized seed fractions of „Bios” rapeseed cultivar and the extracted oils. The seed and oil samples were tested for phosphorus content and the phospholipid profiles. Seed samples were stored for one year at ambient temperature (20±4℃)...
The goal of this study was to evaluate sorption properties of two selected powdered food products– full-fat milk powder and powdered soybean drink.The sorption properties of these products were determined with the static method based on the evaluation of water vapor sorption isotherms and with the dynamic method by assaying water vaporsorption kinetics. The mathematical interpretation of the course...
The aim of the study was to characterize the variability of performance of the colour varieties of pastel, silver blue, and pearl American mink. Observations were made on 996 minks, whose conformation was assessed in accordance with the standard of evaluation. The analysis includesauction results. Among the investigated colour varieties, the most preferred performance features were exhibited by the...
A static mixer was used to mix a strawberry-vanilla concentrate with cream cheese produced with the centrifugal method and a cherry concentrate with cream cheese produced with the ultrafiltration method. Rheological properties of the components and the mixtures were examined at temperature 15℃ with a rotational viscometer in a range of shear rate corresponding to processes of chewing and swallowing...
This study has been conducted to assess the possible impacts of climate change on crop water an dirrigation requirement of the eastern Dez Plain in south-west of Iran, according to the current crop pattern, and for the 2020s, 2050s and 2080s periods. The climate change data was generated for A2 scenario through the global circulation model HADCM3, using the stochastic weather generatorLars-WG model...
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